Yes, temperature and weather conditions affect how quickly concrete cures. Avoid installing your aluminum fence during extreme temperatures—both hot and cold—and during rainy days if possible. Concrete sets best at temperatures between 50°F and 90°F. In colder weather, consider using a special cold-weather concrete mix or adding accelerators to reduce cure time; conversely, use retarders in extremely hot conditions to prevent too fast drying which can weaken the final structure.